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https://github.com/Jermolene/TiddlyWiki5
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81 lines
2.8 KiB
Plaintext
81 lines
2.8 KiB
Plaintext
title: HelloThere
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This is a TiddlyWiki plugin for mathematical typesetting based on KaTeX from Khan Academy.
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It is completely self-contained, and doesn't need an Internet connection in order to work. It works both in the browser and under Node.js.
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! Installation
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To add the plugin to your own TiddlyWiki5, just drag this link to the browser window:
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[[$:/plugins/tiddlywiki/katex]]
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! Using KaTeX
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The usual way to include ~LaTeX is to use `$$`, as shown in the examples below.
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The underlying KaTeX widget is provided under the name `<$latex>` and is also available under the alias `<$katex>`. It's better to use the generic `<$latex>` name unless you are running multiple ~LaTeX plugins and wish to specifically target KaTeX.
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! Examples
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These examples are taken from http://khan.github.io/KaTeX/
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!! Example 1
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```
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$$\displaystyle f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$
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```
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$$\displaystyle f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$
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!! Example 2
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```
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$$\displaystyle \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\cdots} } } }$$
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```
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$$\displaystyle \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\cdots} } } }$$
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!! Example 3
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Use a wrapper element with the class `katex-display` to render math in display mode, centred on a single line in display style.
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```
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<div class="katex-display">
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$$\displaystyle \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</div>
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```
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<div class="katex-display">
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$$\displaystyle \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$
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</div>
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!! Example 4
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```
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$$\displaystyle 1 + \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots = \prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}, \quad\quad \text{for }\lvert q\rvert<1.$$
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```
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$$\displaystyle 1 + \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots = \prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}, \quad\quad \text{for }\lvert q\rvert<1.$$
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!! Widget Example
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For more flexibility the KaTeX widget can also be used via the full widget syntax:
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```
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<$latex text="\displaystyle f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi"></$latex>
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```
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<$latex text="\displaystyle f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi"></$latex>
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! Error Handling
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An warning message is displayed if KaTeX detects a problem with the ~LaTeX syntax. For example:
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```
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$$\displaystyle f(x) = \int_{-\infty}^\infinity\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$
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```
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$$\displaystyle f(x) = \int_{-\infty}^\infinity\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$
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